Product name: Electric bicycle tensioner 

Product material: A3 steel + iron + plastic 

Product color: Silver

Product gross weight: 300g 

Product packaging: neutral bag, 12*12*5cm 

Package Include: 1 x Chain Tensioner Kit  

Application: Adjust the tightness of the chain 

Applicable model: 49CC 66CC 80CC Engine Motorized Bike

NOTE :Please compare the goods appearance, shape, size with your original goods before ordering,Thank you very much